Tinman s flanging-machine



'(No Model.) Y W. J. BAYRER.

TINMANS PLANGING MACHINE. No. 393,055. Patented Nov. 20, 1888.

Jirqi UNITED STATES PATENT OFFICE.

XVILLIAM J. BAYRER, OF SOUTHINGTON, CONNECTICUT.

TINMANS FLANGlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 393,055, dated November 20, 1888,

Application filed December 28, 1887. Serial No. 259,250. (No model.)

1'0 aZZ whom it may concern:

Be it known that I, WILLIAM J. BAYRER, a citizen of the United States, residing at Southington, in the county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Tinmens Flanging-Machines, of which the following is a specification, reference being had therein to the accompanying drawings, in which- Figure 1 is a front view of the machinc ,and Fig. 2 is an end view. Fig. 3 is a vertical section of one of the two boxes and shaft and of a portion of the frame, showing the space in which the box is arranged and the screws for holding the box. Fig. i is a vertical section of the other box and shaft and of a portion of the frame, showing the space in which the box is arranged, a part of the crank-screw,and the spring below the box.

My invention is in machines for Hanging, heading, and wiring metallic plates, commonly called tinmens Hanging-machines.

The invention consists in an improved construction of machines of this class, whereby their strength is greatly increased and their a cost greatly reduced, as the construction is turns.

hereinafter more fully described and claimed.

To enable others to make machines with my improved construction, I will give a detailed description of the same.

The rectangular frame A is cast whole with the standard B and open spaces shown in the drawings. The lower part of the standard may be round or elliptical to fit into a corresponding hole in a support fastened to the bench, or it may be formed to receive a bolt, whereby the machine may be fastened to the bench, as preferred.

The shaft C passes through the lower part of the frame, and is held in the frame by the collar 0, fastened by a set-screw. On one end of the shaft a roll is screwed, and the other end is adapted to receive a crank and handle. (Not shown.) The gage D is made in the form shown in Fig. 4, a part of the roll being broken away to show the gage, and is fastened to the end of the shaft E, passing through the side of the frame near the gage and part way through the opposite side with a left-hand thread on its end. Onto this threaded end the screw H, having an interior left-hand thread,

The screw also has an exterior righthand thread, and screws into a threaded hole in the frame.

I is a jam-nut on the screw H.

The shaft F has aroll screwed onto one end, passes through the boxes a and m, and has a split nut, 0, on the other end, which is tightened by a screw. By this nut the upper roll is adjusted longitudinally in respect to the lower roll. A spiral spring arranged on the shaft between the gear-wheel and box at forces the shaft in the direction of the roll and keeps the split nut against the box m. The box at is arranged in an open space in the frame,and is held in position by the screws a, the inner ends of which are small journals entering holes in the box, on which the box is free to turn. A countersink is made in the inside of the box to allow the spiral spring to be made of greater length, as indicated in Fig. 1. The box a is also arranged in an open space in the frame, and has the transverse groove a: on its upper side, whereby it is held in position by the crank-screw G, passing through the frame and into the groove 00, as shown. Instead of the groove, a cup-like depression may be made in the upper side of the box, into which the screw may pass. It is obvious that the groove may be in the side of the box and that an extra screw may pass through the frame and into the groove to hold the box. The boxes at and a may be made whole or in parts fastened together by screws; but I prefer to make them whole. The crankscrew G holds the box a in position and adjusts the distance between the rolls. The spiral springi, Fig. 4, is placed in a hole in the frame and forces the box a up against the crank-screw G, whereby the upper roll is held away from the lower roll. On the shaft F a gear-wheel is fastened,and a like gearwheel is fastened on the shaft C, the wheels meshing together. For the different kinds of work done on the machine different rolls are used.

By making the frame whole great strength and economy are secured, and by my improved means for holding the box a that part of the shaft near the roll where the greatest strain comes may be the largest and strongest part, a greatly-improved machine being the result.

Having described my improved machine, what I claim as new, and desire to secure by Letters Patent, is-

ICO

In a flanging-machine, the frame A,eonsist- In testimony whereof I affix my signature in ing of a single 'piece of metal, in which are arpresence of two witnesses. ranged the movable boxes m and n, the box m turning on screws in the frame, the box at be- WILLIAM J. BAYRER. 5 ing held in position bya screw passing through Witnesses:

the frame and into a transverse groove in the OTTO BURBAUM, box, as described.

l GEORGE TERRY. 

